Global Patent Index - EP 0350220 A2

EP 0350220 A2 19900110 - Diffusion bonding of aluminium and aluminium alloys.

Title (en)

Diffusion bonding of aluminium and aluminium alloys.

Title (de)

Diffusionsverbindung von Aluminium und Aluminium-Legierungen.

Title (fr)

Jonction par diffusion de l'aluminium et des alliages de l'aluminium.

Publication

EP 0350220 A2 19900110 (EN)

Application

EP 89306692 A 19890630

Priority

GB 8815663 A 19880701

Abstract (en)

The present invention provides a process in which components made of aluminium or an alloy thereof can be diffusion bonded together; the process involves chemically treating the components to remove aluminium oxide on the surface of the components, subjecting them to grit blasting and to a second chemical oxide removal step and finally pressing the components together under heat until they form diffusion bonds. The resulting composite can be superplastically formed to shape.

IPC 1-7

B23K 20/22; B23K 20/24

IPC 8 full level

B23K 20/233 (2006.01); B23K 20/24 (2006.01)

CPC (source: EP US)

B23K 20/2333 (2013.01 - EP US); B23K 20/24 (2013.01 - EP US); Y10T 428/12292 (2015.01 - EP US)

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0350220 A2 19900110; EP 0350220 A3 19900725; EP 0350220 B1 19940420; DE 68914734 D1 19940526; DE 68914734 T2 19940804; ES 2051364 T3 19940616; GB 8815663 D0 19880810; US 4948457 A 19900814

DOCDB simple family (application)

EP 89306692 A 19890630; DE 68914734 T 19890630; ES 89306692 T 19890630; GB 8815663 A 19880701; US 37349289 A 19890630